Variabilidad estacional del plancton en la Bahía de Manta en la costa ecuatoriana, durante el 2011
In 2011, in the Bay of Manta was presented a high diversity of phytoplankton species, determining a total of 75 species, 29 groups for the zooplankton, which were identified to species level the Phylum Chaetognatha identified 6 species and Cladocera with 2 species. The seasonal time during 2011, did not influence the average abundances of the dominant species of phytoplankton and zooplankton, using the student T Test statistic with 95% confidence However specific tests were performed between different stations have a greater diversity of species and stations with less diversity, showing a significant difference in the mean of the population of phytoplankton. The oceanographic conditions recorded in the Equatorial Pacific states mainly cooling during january to april wet season, which again intensified in september and continued until december 2011, therefore can be associated with the continuity of the species dominant plankton during the 2 seasons sesonal in phytoplankton were Rhizosolenia imbricata, Chaetoceros affinis, and Ch. curvisetus, regarding Chaetognaths Sagitta were bedoti, S. enflata, S. peruviana and cladocerans were found the species Penillia aviarrostris and Evadne tergestina. The increased production of chlorophyll "a" and zooplankton biomass occurred during the wet season, being the sites of major chlorophyll at station 4 and higher biomass of zooplankton were observed at stations 12 and 13 compared to the dry season, these changes plankton productivity may be associated with local oceanographic conditions observed in the Bay of Manta in 2011.
| Main Authors: | , |
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| Format: | Journal Contribution biblioteca |
| Language: | Spanish / Castilian |
| Published: |
2013
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| Subjects: | Variability, Plankton, Chlorophylls, Biomass, Species diversity, Seasons, |
| Online Access: | http://hdl.handle.net/1834/5760 |
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